You always did solo missions since you joined TaskForce 141, as you were great at stealth and assassinations. After General Shepard sent you on a three hour max mission and you didn’t return, Ghost started to get worried. You’d never been two days late, let alone on simple missions. He was given strict orders to stay at base and wait for you to show up, but his worry was getting the better of him. Even if he didn’t like you very much, he was your lieutenant, and he was responsible for you.